1. School of Civil and Environmental Engineering Nanyang Technological University 50 Nanyang Ave, N1 01a–29 Singapore 639798 Singapore
2. Interdisciplinary Graduate Program Nanyang Technological University 1 Cleantech Loop, CleanTech One Singapore 637141 Singapore
3. Residues and Resource Reclamation Centre Nanyang Environment and Water Research Institute Nanyang Technological University 1 Cleantech Loop, CleanTech One Singapore 637141 Singapore
4. Laboratory of Molecular Science and Engineering Johan Gadolin Process Chemistry Centre Åbo Akademi University FI-20500 Turku/Åbo Finland